We report a high speed directly modulated widely tunable dual wavelength distributed feedback (DFB) laser for THz communication application. The wavelength separation between the two modes can be thermally tuned between 96 GHz and 1510 GHz. The device can be directly modulated by high speed data at up to 25 Gb/s data rate, which facilitates high speed data modulation in a THz communication system. The device emits at 1.3 μm wavelength, which helps to increase the transmission distance of high-speed baseband data in fibers and lowers the request for wavelength tuning range to obtain the same THz frequency when compared with 1.5 μm wavelength devices. The presented results show that our dual wavelength device is promising for future low cost and high capacity THz communication system.

中文翻译：

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用于太赫兹通信的 25 Gb/s 直接调制宽范围可调谐 1.3 µm 双波长 DFB 激光器


我们报告了一种用于太赫兹通信应用的高速直接调制宽可调双波长分布式反馈（DFB）激光器。两种模式之间的波长间隔可以在 96 GHz 和 1510 GHz 之间进行热调谐。该器件可以直接通过高达 25 Gb/s 数据速率的高速数据进行调制，这有利于太赫兹通信系统中的高速数据调制。该器件发射波长为1.3μm，与1.5μm波长器件相比，有助于增加高速基带数据在光纤中的传输距离，并降低获得相同太赫兹频率的波长调谐范围要求。结果表明，我们的双波长器件有望用于未来低成本和高容量的太赫兹通信系统。